Injured elephant keeper stable

Taronga Zoo keeper Lucy Melo, seriously injured when a young elephant "challenged" her authority, is in a stable condition in a Sydney hospital.

The 40-year-old's family has asked that their privacy be respected while she recovers in Royal North Shore Hospital after two-year-old Pathi Harn pinned her against a bollard on Friday morning.

In a statement on Saturday, Taronga Zoo said its elephant herd, including the calf, nicknamed Mr Shuffles, was calm and well and in the elephant paddock as usual.

The elephant keepers were caring for the herd and continuing normal daily activities to support the elephants, including Pathi Harn, the zoo said.

An investigation into the incident was under way but no results were expected for some time, the zoo's director Cameron Kerr said.

"We're all relieved to hear Lucy's condition remains stable and we're continuing to provide support for her family and her fellow keepers, while we continue our programs for the whole herd," he said.

Ms Melo had been engaged in a routine training session teaching the elephants how to wash.

She was still conscious and talking when paramedics first arrived but lapsed into unconsciousness and had a cardiac arrest for about five minutes.

Pathi Harn is named after the Thai word for miracle because of his survival of a difficult birth.

He was nicknamed Mr Shuffles because his early attempts at walking resembled the shuffle of an elderly man.

-AAP